1990 Alfa Romeo 75 vs. 2008 BMW 645
To start off, 2008 BMW 645 is newer by 18 year(s). Which means there will be less support and parts availability for 1990 Alfa Romeo 75. In addition, the cost of maintenance, including insurance, on 1990 Alfa Romeo 75 would be higher. At 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2008 BMW 645 (328 HP @ 6100 RPM) has 220 more horse power than 1990 Alfa Romeo 75. (108 HP @ 6000 RPM) In normal driving conditions, 2008 BMW 645 should accelerate faster than 1990 Alfa Romeo 75. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 645 weights approximately 755 kg more than 1990 Alfa Romeo 75. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2008 BMW 645 (450 Nm @ 3600 RPM) has 301 more torque (in Nm) than 1990 Alfa Romeo 75. (149 Nm @ 4000 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1990 Alfa Romeo 75.
Compare all specifications:
| 1990 Alfa Romeo 75 | 2008 BMW 645 | |
| Make | Alfa Romeo | BMW |
| Model | 75 | 645 |
| Year Released | 1990 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1566 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 108 HP | 328 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 149 Nm | 450 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 78 mm | 92 mm |
| Engine Stroke Size | 82 mm | 82.7 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1060 kg | 1815 kg |
| Vehicle Length | 4340 mm | 4830 mm |
| Vehicle Width | 1670 mm | 1860 mm |
| Vehicle Height | 1410 mm | 1380 mm |
| Wheelbase Size | 2520 mm | 2790 mm |
| Fuel Tank Capacity | 49 L | 70 L |
